Middle Atlantic RND Raised N Wood FLR BX - CRFB4

Middle Atlantic CRFB4 Four-Gang Round Raised Floor Box

Overview

The Middle Atlantic CRFB4 is a four-gang round raised floor box from the CRFB series, designed for structured AV and IT infrastructure deployments in raised-floor environments — the kind of installation you find in control rooms, trading floors, broadcast facilities, and enterprise open-plan spaces where cable management has to stay clean, accessible, and organized underfoot. At 9.5 in wide, 8.75 in deep, and 6.5 in tall, the CRFB4 fits a defined floor-tile cutout without guesswork and provides four gang positions to consolidate connectivity where you need it most.

TAA compliance is confirmed for this SKU, which matters on government, education, and DoD-adjacent projects where procurement rules require Trade Agreements Act conformance. If your bid spec calls out TAA, the CRFB4 is cleared without a waiver conversation.

Key Features

• Four-Gang Round Form Factor: Four gang positions in a round floor box lets you populate the box with the exact mix of inserts your deployment needs — power, data, AV — rather than fighting a fixed single-purpose unit. Round form factor suits standard raised-floor tile circular cutouts, which are the most common cutout profile in commercial raised-access flooring systems.
• 9.5 in x 8.75 in Footprint: The CRFB4's 9.5 in width and 8.75 in depth are sized for standard raised-floor tile infrastructure. Knowing the exact footprint before ordering means you can confirm tile cutout compatibility with your flooring contractor before the floor goes down — not after.
• 6.5 in Installed Height: At 6.5 in tall, the CRFB4 requires adequate plenum clearance beneath the raised floor. Measure your plenum depth before specifying — this is a non-negotiable fit check on shallow-plenum systems (under 9 in) once cabling and connectors are factored in.
• TAA Compliant: The CRFB4 carries TAA compliance, satisfying federal procurement requirements under the Trade Agreements Act. Government integrators and contractors working on GSA schedules or federal facilities projects can specify this unit without sourcing exceptions.
• CRFB Series Construction: As part of Middle Atlantic's Middle Atlantic infrastructure line, the CRFB4 is built to the same commercial-grade standards as the broader CRFB series — consistent gang sizing, compatible insert ecosystem, and the build quality expected in permanent AV and IT floor infrastructure.
• Raised-Floor Application: Purpose-built for raised floor box deployments, not a retrofit or adapter solution. Designed to integrate flush with the floor surface when properly installed, keeping trip hazards eliminated and the installation looking intentional rather than improvised.

Integration & Compatibility

The CRFB4 is a four-gang round box, which means insert compatibility is determined by the gang size and round cutout geometry of the CRFB series. When specifying inserts — power modules, keystone data plates, HDMI/DisplayPort pass-throughs, or blank covers — confirm compatibility with Middle Atlantic's CRFB series insert lineup rather than assuming cross-series fitment. For control room and AV infrastructure planning, pair the CRFB4 with a rack and infrastructure layout that accounts for under-floor cable routing to keep runs direct and serviceable. If your project includes multiple floor box locations, consider the full Middle Atlantic floor box family to standardize inserts and covers across zones — mixed series on the same floor creates a serviceability headache when inserts need to be swapped in the field.

TAA compliance makes the CRFB4 compatible with procurement on GSA Multiple Award Schedule contracts and similar federal vehicles. Confirm TAA requirements with your contracting officer early — the CRFB4 meets the requirement, but the overall system may have additional compliant-component obligations depending on project scope.

For AV system design guidance on floor box placement and density, consult a structured AV infrastructure planning resource before finalizing floor tile cutout locations — repositioning a floor box after tiles are cut is expensive.

Frequently Asked Questions

Q: Is the Middle Atlantic CRFB4 TAA compliant?

A: Yes. The CRFB4 is confirmed TAA compliant, making it suitable for federal, state, and education projects with Trade Agreements Act procurement requirements.

Q: What are the exact dimensions of the CRFB4?

A: The CRFB4 measures 9.5 in (24.1 cm) wide, 8.75 in (22.2 cm) deep, and 6.5 in (16.5 cm) tall.

Q: How many gang positions does the CRFB4 provide?

A: The CRFB4 is a four-gang floor box, providing four positions for inserts such as power modules, data keystones, or AV pass-throughs compatible with the CRFB series.

Q: What type of raised floor cutout does the CRFB4 require?

A: The CRFB4 uses a round cutout profile, which is standard on most commercial raised-access flooring systems. Confirm the exact cutout diameter with the CRFB series installation documentation before cutting tiles.

Q: What is the minimum plenum depth needed to install the CRFB4?

A: The CRFB4 stands 6.5 in tall. Account for connector and cable bend radius below the box — on shallow-plenum systems under 9 in, verify clearance before committing to this model.

Q: Can the CRFB4 be used in non-raised-floor applications?

A: The CRFB4 is engineered specifically for raised-floor environments. It is not designed as a surface-mount or in-concrete floor box. For flush-mount slab applications, a different product family is appropriate.

Ted Perry

The CRFB4's 6.5 in installed height is the spec I tell integrators to check first — before anything else. A surprising number of raised-floor environments, especially older data centers and retrofit office buildouts, run plenum depths in the 8–10 in range. Once you account for cable connectors and minimum bend radius on Cat6A or fiber, a 6.5 in box body can push you right to the edge of what fits. Measure the plenum before you spec the CRFB4, not after the tiles are cut.

Technical Highlights:

• Four-Gang Configuration: Four independent gang positions give the installer flexibility to mix power, data, and AV inserts in a single floor location — reducing the number of floor cutouts needed in dense collaboration areas or control room operator positions.
• 9.5 in x 8.75 in Footprint: Sized for standard raised-floor tile cutout geometry. The defined footprint means your flooring contractor can pre-cut tiles off-site if dimensions are confirmed early — no on-site guesswork with a jigsaw.
• TAA Compliant: Confirmed TAA compliance on the CRFB4 SKU clears the most common procurement gate on federal and education projects. If TAA is a bid requirement, this unit meets it without a sourcing exception.

Deployment Considerations:

• Round cutout form factor is the right match for most commercial raised-access flooring systems, but confirm the exact cutout diameter spec from Middle Atlantic's CRFB series documentation before your flooring contractor makes the first cut — diameter tolerances matter for a flush, rattle-free fit.
• The CRFB4 is a box only — inserts are specified and ordered separately. Build your insert list (power, data, AV, blanks) before finalizing the order so the floor box and its population ship together and the installation doesn't stall waiting on a second delivery.

The CRFB4 is the right call for commercial raised-floor deployments — control rooms, broadcast studios, open-plan enterprise floors — where four connectivity positions per location, a clean round form factor, and confirmed TAA compliance are all requirements in the same bid. For single-gang or rectangular-cutout applications, look to other configurations in the CRFB series.